/**
 * #6966 — script-aware punctuation for the Authenticator delivery message.
 *
 * The delivery message is assembled from translated fragments joined by
 * punctuation. Hardcoding an ASCII period is wrong for locales whose sentence
 * terminator differs: Japanese/Chinese use the ideographic full stop `。` and
 * Thai writes no sentence terminator at all. The terminator and the
 * inter-sentence spacer are therefore derived from the script of the
 * surrounding translated copy, keeping punctuation locale-correct without
 * adding a translation key, interpolation, or any public API.
 *
 * Script detection is MAJORITY-based rather than "contains any": a sentence is
 * treated as CJK or Thai only when most of its non-whitespace characters belong
 * to that script. "Contains any" mis-classifies copy such as a Latin sentence
 * that includes a single CJK proper noun, or a Korean (Hangul) phrase that
 * happens to contain a stray CJK codepoint.
 */
/**
 * Appends the script-appropriate sentence terminator to `sentence` unless it is
 * already terminated. CJK copy receives the ideographic full stop `。`, Thai
 * copy is left untouched, and every other script receives an ASCII period.
 *
 * @internal Not exported from the `@aws-amplify/ui` public entry point.
 */
export declare const terminateSentence: (sentence: string) => string;
/**
 * Returns the separator to place between two joined sentences. CJK scripts do
 * not separate sentences with a space; every other script does.
 *
 * @internal Not exported from the `@aws-amplify/ui` public entry point.
 */
export declare const getSentenceSpacer: (sentence: string) => string;